TRIFECTA is pleased to announce the immediate availability of the 2014--2018+ Chevrolet Silverado and GMC Sierra vehicle software recalibration (reflash) for vehicles utilizing either the 5.3L V8 or the 6.2L V8 with either the 8 speed automatic transmission (8L90 / RPO:M5U) or the 6 speed automatic transmission (6L80 / RPO:MYC). Two wheel drive (2WD), four wheel drive (4WD) and all wheel drive (AWD) variants are supported. Specific gains over factory calibration are up to (uncorrected) 45lb-ft of torque and 19 horsepower with no vehicle modifications beyond the updated software calibration.

TRIFECTA's 2014--2018+ full size truck recalibration is complimented by a fully developed 6-speed or 8-speed (depending on application) automatic transmission calibration to support the increased power delivery profile and to offer dramatically improved driving characteristics from everyday driving maneuvers to towing and hauling. The complete powertrain calibration also includes ESC (Stabilitrak) and, for four/all wheel drive (4WD/AWD) equipped models, TCCM (transfer case control module) program enhancements.

The L83 offers V8/V4 mode. GM has succeeded in making V8/V4 transitions (AFM, or Active Fuel Management as GM calls it) extremely smooth, such that in most cases they can't be noticed. However, some customers may have exhaust or other modifications that cause the truck to produce an undesirable exhaust note while in V4 mode. TRIFECTA exclusively offers three options with regard to adjusting AFM parameters with this product:

AFM available/active in all drive modes (default)

AFM disabled in Sport mode

AFM disabled entirely

Advantage+ and Elite customers may request AFM behavior changes when ordering their product.

-Estimated installation time of ~20 minutes
-Premium fuel is recommended for maximum power output, but not required

Additional information and availability:

- This powertrain calibration includes a TRIFECTA powertrain calibration file specific to your vehicle and includes a flash loader device
- Powertrain calibrations currently exist for North American vehicles only, with more regions to follow

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Firstly, this company is phenominal! The customer service and quick response is worth the tune hands down. Secondly, the power i get from sport mode never ceases to amaze me. From a dead stop I can disable traction control and punch the accelerator in sport mode to lose myself a little tread. Additionally, my truck has the Bi-Modal engine which means while cruising it hits 4 cyl regularly and will sometimes shift back and forth to 8 cylinders and 4 cylinders to save on either power or fuel economy. This presents a few problems. On the stock setup the truck tended to have an occasional "Hard shift", which means that if it was going back into 8 cyl mode at the same time as the transmission was shifting gears you might think someone just bumped you from behind. It was truly a HARD shift. I have also seen a lot of discussion about the bi-modal setup being hard on the oil pump and more specifically causing the vehicle to burn oil later in it's lifecycle. To remedy all of these issues i asked a representative if they could tune my truck to NEVER go into 4 cyl mode. They did and man i have to tell you, what a difference it has made. Im talking no more hard shifts, no more lag between acceleration when in 4 cyl mode. Plus the fuel economy has only been effected by coming down from about 16.5-17 mpg to 16 mpg. The 4 cyl mode just wasn't worth it in my opinion. However the Trifecta Tune I purchased has REALLY been worth the price and I couldn't be happier. I just wish I could get a little sticker or decal for my back window. For sure worth the purchase. If you are on the fence, get this one!